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| Large number limit of multifield inflation | |
Guo, ZK ; Guo, ZK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
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| 2017 | |
| 发表期刊 | PHYSICAL REVIEW D
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| 卷号 | 96期号:12页码:123521 |
| 文章类型 | Article |
| 摘要 | We compute the tensor and scalar spectral index n(t), n(s), the tensor-to-scalar ratio r, and the consistency relation n(t)/r in the general monomial multifield slow-roll inflation models with potentials V similar to Sigma(i)lambda(i)vertical bar phi(i)vertical bar(Pi). The general models give a novel relation that nt, ns and n(t)/r are all proportional to the logarithm of the number of fields N-f when N-f is getting extremely large with the order of magnitude around O(10(40)) thorn. An upper bound N-f less than or similar to N*e(ZN)* is given by requiring the slow variation parameter small enough where N-* is the e-folding number and Z is a function of distributions of lambda(i) and rho(i). Besides, n(t)/r differs from the single-field result - 1/8 with substantial probability except for a few very special cases. Finally, we derive theoretical boundsr r > 2/N-* (r greater than or similar to 0.03) and for nt, which can be tested by observation in the near future. |
| 合作性质 | 国内 |
| 学科领域 | Astronomy & Astrophysics ; Physics |
| 资助者 | National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University |
| DOI | http://dx.doi.org/10.1103/PhysRevD.96.123521 |
| 关键词[WOS] | FLUX COMPACTIFICATIONS |
| 语种 | 英语 |
| 资助者 | National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS记录号 | WOS:000418202300004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.itp.ac.cn/handle/311006/22192 |
| 专题 | 计算平台成果 |
| 通讯作者 | Guo, ZK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Guo, ZK,Guo, ZK . Large number limit of multifield inflation[J]. PHYSICAL REVIEW D,2017,96(12):123521. |
| APA | Guo, ZK,&Guo, ZK .(2017).Large number limit of multifield inflation.PHYSICAL REVIEW D,96(12),123521. |
| MLA | Guo, ZK,et al."Large number limit of multifield inflation".PHYSICAL REVIEW D 96.12(2017):123521. |
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| Large number limit o（281KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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